Home / 872,843.96-1,309,211.57-417,758.42

Finding the Fourth Proportional to 872,843.96, 1,309,211.57 and 417,758.42

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Solution

The fourth proportional to 872,843.96, 1,309,211.57 and 417,758.42 is: 626,611.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,843.96 : 1,309,211.57 = 417,758.42 : x
  2. Step 2: Convert to fraction form
    872,843.96/1,309,211.57 = 417,758.42/x
  3. Step 3: Cross multiply
    872,843.96x = 1,309,211.57 × 417,758.42
  4. Step 4: Simplify right side
    872,843.96x = 546,934,156,928.92
  5. Step 5: Solve for x
    x = 546,934,156,928.92/872,843.96
  6. Step 6: Final answer
    x = 626,611.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.